spontaneous — done or occurring as a natural impulse without planning or external cause
Part of speech: ADJECTIVE
Definition: done or occurring as a natural impulse without planning or external cause
Pronunciation (IPA): /spɑːnˈteɪniəs/
Example Sentences
- His spontaneous marriage proposal in the grocery store surprised everyone, including himself.
- The class broke into spontaneous singing when the teacher announced no homework.
- She's known for her spontaneous acts of kindness toward strangers.
spontaneous
ADJECTIVE[/spɑːnˈteɪniəs/]
done or occurring as a natural impulse without planning or external cause

The stressed worker aggressively threw his heavy planner into the trash, making a completely spontaneous decision to escape to the beach.

SPONT(own accord) + ANEOUS(state) — a spontaneous reaction is like a jack-in-the-box bursting outward purely by its own internal force.

Struck by the magician's instantaneous flash of fire, the amazed audience member leaped up in a totally spontaneous explosion of cheers.
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🎤Pronunciation
🌳Etymology
Origin
From Latin 'spontaneus' meaning 'of one's own accord,' derived from 'sponte' meaning 'willingly' or 'of one's own will.' The Latin root is of uncertain ultimate origin but may be related to Latin 'spondere' meaning 'to promise.'
Breakdown
Latin 'sponte' (of one's own will) + '-aneus' (suffix forming adjectives) + '-ous' (English adjective suffix) = spontaneous (occurring by one's own impulse)
🎵Rhyme
🔗Collocations
📝Examples
“His spontaneous marriage proposal in the grocery store surprised everyone, including himself.”
“The class broke into spontaneous singing when the teacher announced no homework.”
“She's known for her spontaneous acts of kindness toward strangers.”
“The spontaneous road trip turned into the best weekend of our lives.”
📚Related Words
Synonyms
Antonyms
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